Observational analysis determined validity and reliability of fatigue questionnaires in patients with spondyloarthritis, indicating their clinical usefulness.
Objective To investigate the validity, reliability, and interpretability of the Danish and Swedish versions of the Bristol Rheumatoid Arthritis Fatigue Multi-Dimensional Questionnaire (BRAF-MDQ) and Bristol Rheumatoid Arthritis Fatigue Numerical Rating Scales (BRAF-NRS V2) (BRAFs) in patients with spondyloarthritis (SpA).
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Damgaard et al. (2025) studied this question.
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